Tongueless wheel-cultivator



2 Sheets-Sheet 1.

E. P. LYNCH.

(No Model.)

TONGUELESS WHEEL GULTIVATOR.

Patented Feb. 22, 1887.

Hlllw Witneasw: Q Japan/60 r or, wmin mn D. c.

' N, PEIERS, PholuLiLo 1 I UNITED STATES PATENT OFFICE.

EDWARD P. LYNCH, OF DAVENPORT, IOXVA.

TON-GUELESS WH EEL=CULT|VATOR.

SPECIFICATION forming part of Letters Patent No. 358,362, dated February 22, 1887.

Application filed June 12, 1886.

.To all whom it may concern.-

Be it known that I, EDWARD 1. LYNcmof Davenport, in the county of Scott and State of Iowa, have invented certain Improvements in Tongueless Wheeled Cultivators, of which the following is a specification.

My invention relates to that class of wheeled machines commonly designated as tongueless or parallel cultivators, in which ,an arched frame or axle having the shovel-beams jointed at their forward ends thereto is sustained by means of wheels having their axles and draft devices connected to the arched frame by vertical pivots, so that the wheels may swi-ng horizontally under the influence of the draft devices, and. that either side of the machine may advance independently of the other.

The aims of my invention are to provide improved spring-connections for resisting the pivotal action of the wheels and maintaining them in their normal position, and to provide means for conveniently adjusting the inclination of the standard and shovel, and for combining a break-pin therewith that they may yield when subjected to excessive strains.

As the general construction and arrange ment of the frame-work and the manner of connecting-the beams thereto are familiar to every mechanic and not claimed as part of my invention, I have deemed it sufficient toillustrate one side of my machine with such parts as are necessary to an understanding of my invention.

In the accompanying drawings, Figure 1 is a perspective View of one side of the cultivator having my improvements incorporated therein, the wheel being removed to expose other parts to view. Fig. 2 is a horizontal section through the same, illustrating more fully the manner in which the spring is applied and its mode of connection. Fig. 3 is a like section showing the spring'connection in modified form. Fig. 4 is an outline view showing another modification of the spring attachment. Fig. 5 is a side elevation of the beam, showing the support for the shovelstandard. Fig. 6 is a section of the same on the line w as. Fig. 7 is a perspective view of the sustaining devices when detached.

Referring to the drawings, A represents an arched axle or frame; B, a casting bolted rig- Serial No. 204,984. (No model.)

idly to its outer side, and which presents two horizontal arms connected by a vertical pivot, O, to a draft-arm, D,which isextended forward and fashioned into suitable shape to receive the draft devices, and provided on its outer side with the rigid journal or axle a, which receives and carries the main wheel E, this arrangement of parts permitting the wheel to swing about the vertical pivot and follow the direction of the draft.

It will be observed that the draft-arm D and axle a are formed in one rigid piece, whereby the axle is compelled to partake of the horizontal motion of the arm without the employment of auxiliary parts or connections.

F represents one of the shovel carrying beams, having its forward end forked and connected by vertical journals to a horizontal rock-shaft, G, mounted in the casting B, to which the shovels are attached in the ordinary manner to swing both vertically and horizontally.

The foregoing parts are constructed and operated in substantially the same manner as in other machines at present known in the art.

In applying my first improvement I provide the arm D with one or more inwardly-extending ears, 0, lying at right angles to the line of draft and in line with the axis of the wheel, and to these cars I connect, byavertical pivot, d, an eyebolt, e, which is extended loosely through a guiding-ear, f, formed for the purpose on the casting B. The inner end of this eyebolt is encircled by a spiral or other suitable spring, g, bearing at its inner end against an adjustable nut applied to the inner end of the bolt. The spring urging the eyebolt inward causes the latter to act on the draftframe in such manner that it tends to hold the wheels and draft-arm in lines parallel with the beams, allowing them, however, to be swung horizontally by the application of moderate force. Instead of extending the ear 0 inward in line with the axle, they may be extended forward at right angles to the axle, as shown in Fig. 3, in which case the spring and bolt will be extended forward in line with the draftarm. When thus arranged the spring-connection acts with the same effect as that first described.

The essence of theinvention consists in combining with the horizontally-swinging draftarm, to which is rigidly secured a spindle or journal carrying the ground-wheel, an arm or car projecting therefrom, and a spring operating in connection with said car, substantially as described.

It will be understood by the skilled mechanic that in place of the compression-spring shown in Figs. 1 and 2 a tension-spring may be applied, as shown in Fig.4, one end being attached to the ear 0 and the opposite end to the casting B, as shown.

I am aware that a draft-arm has been provided with beveled or inclined faces, against which corresponding plates were urged by springs to resist the lateral motion of the arm, and I am also aware that a rubber block has been secured in position againstthe side of the arm to resist its motion, and I lay no claim to either of said constructions.

Referring now to the second feature of my construction, H represents a shovel-carrying standard united at its upper end in the ordinary manner to the beam F by a bolt, I, or its equivalent. To the lower part of the standard there is pivoted a metal link or strap, J, the upper end of which is perforated and secured by a wooden break-pin, K, in the lower forked end of a plate, L. The upper end of this plate is slotted longitudinally and provided at its extremity with an inwardly-proj ecting stud, M, and is seated against the outer side of an eccentric plate, M, lying against the outer side of the beam and rotating on a bolt, N, which is passed through the slotted plate and the eccentric into the beam, so as to hold the several parts in position. The eccentric M is provided with aseries of peripheral notches to receive the stud of the plate L, so that by turning the eeccntricthe plate maybe adjusted longitudinally and held in different positions, and thus the inclination of the standard and shovel varied, as occasion may demand. In

the event of the shovel meeting with strong resistance, the break-pin will yield and permit the parts to separate, so that the standard may swing to the rear.

The essence of the invention as regards the adjustment consists in the combination of a notched eccentric and a sliding plate engaging therewith, and it is manifest that the details of form and arrangement may be modified at will, provided these features are retained.

I am aware that eultivators have been constructed with wheels arranged to turn horizontally, and that springs have been applied in different ways to resist the movement of the wheels from their normal positions, and my invention is therefore limited to the construction and the combination of parts essentially such as herein described.

Having thus described my invention, what I claim is-- 1. In combination with the main frame or axle, the draft device D, connected thereto by a vertical pivot and provided with the wheelcarrying spindle, the eycbolt connected to a projection on said draft-arm, and the spring interposed between the eyebolt and the frame, substantially as described.

2. In a wheeled cultivator, the combination of the main frame or axle, the draft device connected by a vertical pivot 'to the frame and provided with a wheel-carrying spindle, and also with a lateral ear or projection, c, and a spiral spring, through which said car is connected to the main frame, as described.

3. In combination with the beam and the shovel-standard, the notched eccentric, and the adjustable plate secured by said eccentric.

4. In combination with the beam and standard, the notched eccentric, the slotted plate having the stud to engage the eccentrie, the confining-bolt, and a connection from the plate to the standard.

In testimony whereof I hereunto set my hand, this 14th day of May, 1886, in the presence of two attesting witnesses.

EDWARD P. LYNCH.

Witnesses:

GEo. H. FRENCH, G. XVATsoN FRENCH. 

